playTone(frequency, duration, pause [, flags [, freqIncr]])

Supported targets: BW, COLOR

Status: current Introduced in 2.1.0, changed in 2.10

Parameters

• frequency (number) tone frequency in Hz (from 150 to 15000)

• duration (number) length of the tone in milliseconds

• pause (number) length of the silence after the tone in milliseconds

• flags (number):

  • 0 or not present play with normal priority.

  • PLAY_BACKGROUND play in background (built in vario function uses this context)

  • PLAY_NOW play immediately

• freqIncr (number) positive number increases the tone pitch (frequency with time), negative number decreases it. The frequency changes every 10 milliseconds, the change is freqIncr * 10Hz. The valid range is from -127 to 127.

• volume (number): (1..5) override radio settings Beep volume for the duration of file. Omitting the parameter uses radio settings Beep volume

Return value

none

Examples